Named Harbingers, the series' latest episode is out now and visits Khadgar as he plans to take down the Legion. Things get complicated, though, when Medivh shows up. Let's take a look:

The Harbingers series is designed to prime players ahead of WoW’s latest chapter—the sixth expansion which follows the events of Warlords of Draenor. Episode one was centred around Gul’dan, a key-player in the in-coming Legion, and a few more shorts are expected to run between now and the add-on's release to get players up to speed.